Fig. 3From: pH-dependent nanodiamonds enhance the mechanical properties of 3D-printed hyaluronic acid nanocomposite hydrogelsFilament sizes for the HA/ND-OH nanocomposite hydrogel precursor with varied needle size under the same printing parameter configurations (moving speed of 2 mm/s). Needle size: a 26 gauge, b 23 gauge, c 21 gaugeBack to article page